<template>
  <div>
      <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区 -->
    <el-card >
        <div id="main" style="width:900px;height:400px">
        </div>
    </el-card>
  </div>
</template>

<script>
import echarts from 'echarts'
export default {

    data(){
    return{
options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
},
// 挂载后要操作页面中的dom 应该在mounted 这个钩子中操作
 async mounted(){
    // 基于准备好的dom 初始化echarts实例
    var myChart=echarts.init(document.getElementById('main'))
// 获取数据

  
      const { data: res } = await this.$http.get(`reports/type/1`)
      if (res.meta.status !== 200) {
        return this.$message.error("获取报表数据失败");
      }
      const result=Object.assign(this.options,res.data)
    // 使用刚指定的配置项和数据显示图案
      myChart.setOption(result)
}
}
</script>

<style>

</style>